My Passat diesel's fan stays on after I switch off the engine - is this related to the DPF?
I have a Passat Estate diesel and have read your comments regarding the problems of the DPF. On a couple of occasions recently the engine fan has continued to run after a short journey. Since then I have completed a number of long journeys at the end of which the fan was not running. Would the fan running after the short journeys be anything to do with the DPF?
Asked on 1 June 2013 by MF, Harpenden
Answered by
Honest John
Probably. When the DPF regenerates it gets extremely hot. So it’s likely you reached the end of your journey during a regeneration and that's why the fan stayed on. During a long journey all the regeneration necessary to burn off the particulates from the cold start will have taken place during the journey.
Similar questions
Since I had the emissions fix done I've had numerous incidents of the engine or fan running on after switching off the engine and removing the key from the ignition. This has never happened before, is...
Since having the emissions fix on my Volkswagen Passat, I noticed the fan running for twenty or so seconds after I had switched off and locked the car. It sounded so loud and I've never noticed it before.
You keep talking about the problems associated with DPFs. I have a 56-reg Volkswagen Passat TDI 140 and I only do 7000 miles a year. My daily commute is a round trip of 20 miles and I would rarely do anything...
Related models
.jpg?width=115&height=75&rmode=crop)
Spacious and comfortable. Wide range of engines. Big, boot with lockable seatbacks. Generally better from May 2008 onwards.
Elsewhere on 
.jpg)
